# -*- coding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

from openerp.osv import fields, osv
from openerp.tools.translate import _
from openerp import netsvc
from openerp.tools import float_round, float_is_zero, float_compare
import openerp.addons.decimal_precision as dp
#----------------------------------------------------------
# Purchase Order
#----------------------------------------------------------

class res_partner(osv.osv):

    _inherit = 'res.partner'
    
    def _check_duplicate_ref(self, cr, uid, ids, context=None):
        for res in self.browse(cr, uid, ids, context=context):
            if res.customer == True:
                duplicate_ids = self.search(cr, uid, [('ref','=',res.ref),('id','!=',res.id),('customer','=',True)])
            if res.supplier == True:
                duplicate_ids = self.search(cr, uid, [('ref','=',res.ref),('id','!=',res.id),('supplier','=',True)])
            if duplicate_ids:
                return False
        return True
    
    _columns = {
        'ref': fields.char('Contact Reference', select=1, required=True),
    }
    
    _constraints = [
        (_check_duplicate_ref, 'Error!\nCan not duplicate Contact Reference  .', ['ref']),
       ]

res_partner()
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